Question
According to law of conservation of mass, the mass of the reactant side must always be ________ to the product side.
- Less than
- Sometimes less or sometimes more
- Greater than
- Equal
Hint:
The Law of conservation of mass explains the non-destructible nature of mass.
The correct answer is: Equal
- According to the law of conservation of mass, the mass of the reactant side must always be equal to the product side.
- The law of conservation of mass states that within an isolated system, mass can neither be created nor destroyed. In other words, the mass of the products that are formed in a chemical reaction will always be equal to the mass of the reactant.
- During the formation of 2 moles of the water molecule, hydrogen combines with oxygen in a ratio of 2:1. Here, we can see that the number of reactants equates to the number of products.
The law of conservation of mass was proposed by Antoine Lavoisier.
Related Questions to study
All atoms of the same element are identical in __________ and ______.
The elements with the same atomic number and different atomic mass are known as isotopes.
All atoms of the same element are identical in __________ and ______.
The elements with the same atomic number and different atomic mass are known as isotopes.
Which of the following was not explained by Dalton’s atomic theory?
Dalton's atomic theory has many limitations including the inability to explain the presence of isotopes and allotropes.
Which of the following was not explained by Dalton’s atomic theory?
Dalton's atomic theory has many limitations including the inability to explain the presence of isotopes and allotropes.
Which of the following failed the existence of Dalton’s theory?
Dalton's theory is even disproved by the presence of isotopes.
Which of the following failed the existence of Dalton’s theory?
Dalton's theory is even disproved by the presence of isotopes.
“Dalton’s theory of same element has same mass and properties” was proved wrong by the invention of
Atomic number is determined by the number of protons and atomic mass is determined by mass of nuclei.
“Dalton’s theory of same element has same mass and properties” was proved wrong by the invention of
Atomic number is determined by the number of protons and atomic mass is determined by mass of nuclei.
Who proposed “Atoms are indivisible”.
The atoms are chemically neutral. The positive charge is balanced by the negative charge.
Who proposed “Atoms are indivisible”.
The atoms are chemically neutral. The positive charge is balanced by the negative charge.
________ are explanations of observations that are supported by reliable evidence.
To become a theory, a hypothesis needs to be tested a good number of times.
________ are explanations of observations that are supported by reliable evidence.
To become a theory, a hypothesis needs to be tested a good number of times.
All matter is made of small particles called
The positive charge in the atom is known as proton and the negative charge is known as the electron.
All matter is made of small particles called
The positive charge in the atom is known as proton and the negative charge is known as the electron.
